MAXREFDES1220: Bootstrap, 5V/2A, step-up DC-DC converter with 90% efficiency, using MAX16990

This reference design boosts a single-cell battery voltage input to a 10W output using the MAX16990 controller in bootstrapped mode.

Schematic PCB

2019 National Electronic Design Competition National Second Prize Code for Question D (Simple Circuit Characteristics Tester)

Schematic PCB

TWR-S08LL64: MC9S08LL 8-bit segment LCD tower system module

Schematic PCB

MED-EKG: Electrocardiograph Development Kit for Tower Systems

Schematic PCB

Energy meter based on Internet of Things

The main modules of this system include measurement and display main control single chip GPRS. Metering uses a serial communication module to provide a serial port to send commands to the metering module for measurement, and the metering module sends back parameters such as voltage, current, and electric energy. GD32F350 receives and processes the display, stores it in the buffer, and then sends the stored data to Baidu Cloud through the GPRS module through the TFT LCD display. Then obtain the main parameters through the mobile APP.

Schematic PCB

Brushless DC motor

This solution uses NuMicro® N76E003 as the main system chip and uses Nuvoton NCT3605 gate driver to implement a closed-loop brushless DC motor (Brushless DC, BLDC) system.

Schematic PCB

i.MX RT1064 Evaluation Kit

i.MX RT1064 EVK is a 4-layer through-hole USB powered PCB. The core of the board is the i.MX RT1064 crossover MCU, which uses NXP’s advanced Arm® Cortex®-M7 core implementation. The core runs at speeds up to 600 MHz, providing high CPU performance and excellent real-time response.

Schematic PCB

ST8500 PLC & RF Hybrid Connectivity Development Kit

The EVLKST8500GH hybrid connectivity solution for the ST8500 SoC platform combines the advantages of both PLC and RF technologies to enable applications with the best coverage in any network conditions and topologies.

Schematic PCB

i.MX RT1060 Evaluation Kit

i.MX RT1060 EVK is a 4-layer through-hole USB powered PCB. At its core is the i.MX RT1060 crossover MCU, implemented using NXP's advanced Arm® Cortex®-M7 core. This core runs at speeds up to 600 MHz to provide high CPU performance and excellent real-time response. Support for FreeRTOS™ is provided in the MCUXpresso SDK. Zephyr™ OS supports the i.MX RT1060 evaluation kit for developing IoT with a free, open source embedded operating system. 

Schematic PCB

FRDM-KV11Z: Freedom development platform for the Kinetis ^® KV1x family of 128 KB, 64 KB, 32 KB and 16 KB Flash MCUs

Freedom Development Platform for Kinetis ^® KV1x Family of 128 KB, 64 KB, 32 KB and 16 KB Flash MCUs

Schematic PCB

Cost-Effective Ultrasonic Pulse Generator IC Evaluation Board Based on STHV749

Cost-effective ultrasonic pulse generator IC evaluation board based on STHV749

Schematic PCB

48 V-130 W high efficiency converter with PFC based on L6562 and L6599 for LED street light applications

High-efficiency 48 V to 130 W converters based on L6562 and L6599 with PFC for LED street lighting applications

Schematic PCB

300W high AC input voltage LED driver with digital power control

The STEVAL-LLL009V1 digitally controlled 300 W power supply consists of power factor correction (PFC) and half-bridge LCC resonant converter power stages. An STM32F334R8 microcontroller implements DC-DC and output synchronous rectification digital control, while the PFC is driven in transition mode by the L6562AT controller. The system supports constant voltage (CV) and constant current (CC) operation.

Schematic PCB

Multi-phase electricity meter daughter board based on STPMS2 smart sensor device

Multi-phase electric energy meter daughter board based on STPMS2 smart sensor device

Schematic PCB

100W motor control power board based on SLLIMM intelligent power module STIPN2M50T-H

100 W motor control power board based on STIPN2M50T-H SLLIMM™ nano IPM MOSFET

Schematic PCB

Smoke detector schematic and PCB source files and BOM

Smoke sensor design includes principle circuit design, PCB and BOM list

Schematic PCB

NHS3100UCODEADK：NHS3100-UCODE-I2C

NHS3100UCODEADK

LED driver based on LED6001 + 9-LED board with NTC sensor

LED driver based on LED6001+9LED board with NTC sensor

Schematic PCB

VIPer01 - 5V, 0.85A flyback converter using VIPer™Plus

5 V / 0.85 A flyback converter using VIPer™ Plus - VIPer01

Schematic PCB

STDRIVEG600 600V High Speed ​​Half-Bridge Gate Driver Demonstration Board Assembled MDmesh DM2 Power MOSFETs